COSMOS Black Color PU Leather Protection Carrying Case Cover Box + 4Ft US 5V/2A Universal AC Micro USB Wall Charger Adapter Unique oval shape PU leather case is especially design for LG HBS-730 Bluetooth Headset Zipper design, soft interior layer offers better protection The wall charger also compatible with most smartphones and tablet PC with micro USB charging port, such as Samsung Galaxy Note 2 N7100, Samsung Galaxy S3 S4, Nokia lumia 920 925, HTC One X, Sony Xperia S, Google Nexus 7 / 10 etc. Input: AC 100-240 V; Output: 5V/2A Built-in EMI core filter to reduce electro-magnetic interference while charging.